Master Catalog — Gems Sensors & Controls - E-31

PANEL CONTROLS AND ALARMS

DMS 470/570 Series
Leak Detection Systems
for UST and AST Storage Tanks
 Low Cost
 U.L. Approved Intrinsically Safe
 Easily Maintained
 Audio/Visual Alarm
The DMS 470/570 monitoring systems are ideal for a number of UST and AST
monitoring applications. The DMS 470 includes an audible bell while the DMS 570
uses a piezoelectric horn. Applications include vapor monitoring of monitoring wells
surrounding single wall tanks, high/low product level alarms, vapor sensors for single
wall piping and piping sump sensors for double wall piping.

Auxiliary Contacts
Auxiliary alarm contacts are also available for interfacing to remote alarms,
computers, tank gauging systems, phone dialers, etc.

Specifications

WARRICK CONDUCTIVITY SENSORS

Contact Design
Contact Rating
Sensitivity Range
Remote Alarm Contact
Primary Voltage
Probe Voltage
Optional Auxiliary Contacts
Optional " Check "
Push Button Board*
	
Enclosure Type
	
Temperature
Approval

SPDT (1 form C), one normally open, one normally closed
120 VAC or 30 VAC, 10A, 1/3 h.p.
0-50,000 ohms max. specific resistance
Terminals; 7 N.C., 8 com, 9 N.O.
120 VAC (+10%/-15%) 60 Hz
Nominal 12 VAC @ 6ma RMS
One relay contact per channel

Applications
Above Ground Fuel Storage Tanks (AST)
*	Leak Detection	
*	Overfill
*	Refill
Underground Fuel Storage Tanks (UST)
*	 High Level Alarm	
*	 Leak Detection
*	 Piping Sumps	
*	 Monitoring Well

Dimensions
4 Channel
DMS-478

NORMAL

Terminals: Size four (4) pan head screw with a clamping plate;
will accept up to 14 AWG.
NEMA 3R; optional NEMA 4, Weather-proof;
optional NEMA 4X, Fiberglass
-40°F to +150°F (-40°C to +65.5°C)
U.L. Listed (U.L. 913) E120178

1

2

3

TEST

10˝

4

11˝

SILENCE

*For media discrimination in-storage tank

How to Order

3˝

Use the Bold characters from the chart below to construct a product code. One set of
auxiliary contacts is standard with every four (4) channels supplied. A common test
button is standard for every four (4) channels supplied. The fuel/water check buttons
listed below are used to distinguish water or hydrocarbon when three wire sensors are
used. Each sensor or detection point requires its own channel.

8˝

8 Channel
DMS-478

NORMAL

NORMAL

				DMS	
XX	X	 X	 X	XX
Series
	47 audible bell; 57 piezoelectric horn
Number of Channels
	1 1 Channel; 2 2 Channels; 3 3 Channels; 4 4 Channels;
	 8 8 Channels; 12 12 Channels; 16 16 Channels;
Fuel/Water Check Push Buttons
	A No Check Buttons; B Check Buttons, 4; C Check Buttons, 8;
	 D Check Buttons, 12; F Check Button, 1;
	 G Check Buttons, 2; H Check Buttons, 3
Auxiliary Contacts
	1 None; 2 Aux. Contacts, 4; 3 Aux. Contacts, 8; 4 Aux. Contacts, 12;
	 6 Aux. Contact, 1; 7 Aux. Contacts, 2; 8 Aux. Contacts, 3
Enclosure
	N4 NEMA 4 option; N4XFG NEMA 4X fiberglass option

E-31

12˝
1

2

TEST

3

4

1

TEST

SILENCE

3˝

2

3

4

13˝

SILENCE

12˝

See Our Interstitial Tank Monitoring Products
on page A-22.

Visit www.GemsSensors.com for most current information.

DMS-470/570 Series / p1of1 / 3-APR-14

http://ecatalog.gemssensors.com/ecatalog/warrick-panels-and-kits/en/gemslink/1=DMS47 http://ecatalog.gemssensors.com/ecatalog/warrick-panels-and-kits/en/gemslink/1=DMS57 http://ecatalog.gemssensors.com/ecatalog/warrick-panels-and-kits/en/gemslink/1=DMS47 http://ecatalog.gemssensors.com/ecatalog/warrick-panels-and-kits/en/gemslink/1=DMS57 http://www.GemsSensors.com

Master Catalog — Gems Sensors & Controls

Table of Contents for the Digital Edition of Master Catalog — Gems Sensors & Controls